R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations. The list was consolidated and republished in Directive 2001/59/EC, where translations into other EU languages may be found.警示性质标准词（英语：Risk Phrases，简写：R-phrases）是于《欧联指导标准67/548/EEC 附录III: 有关危险物品与其储备的特殊风险性质》里定义。该列表被集中并再出版于指导标准2001/59/EC，读者于该处也可以找到其他欧联语系翻译。These risk phrases are used internationally not just in Europe and there is an ongoing effort towards complete international harmonization. (Note: missing R-number combinations indicate phrases that were deleted or replaced by another phrase.)该处安全建议标准词为国际通用，并不只是局限于欧洲，并且该标准词目前正致力于完成国际间的同调。注意：缺少R-号码的组合表示标准词被删除或者被其他标准词取代。R1: Explosive when dry R1：干燥时易爆R2: Risk of explosion by shock, friction, fire or other sources of ignition R2：受冲击、摩擦、着火或其他引燃源有爆炸危险R3: Extreme risk of explosion by shock, friction, fire or other sources of ignition R3：受冲击、摩擦、着火或其他引燃源有极高爆炸危险R4: Forms very sensitive explosive metallic compounds R4：生成极敏感的爆炸性金属化合物R5: Heating may cause an explosion R5：受热可能引起爆炸R6: Explosive with or without contact with air R6：有无空气存在下均极容易爆炸R7: May cause fire R7：可能引起火灾R8: Contact with combustible material may cause fire R8：与可燃物质接触可能引起火灾R9: Explosive when mixed with combustible material R9：与可燃物质混合有爆炸性R10: Flammable R10：易燃R11: Highly flammable R11：高度易燃R12: Extremely flammable R12：极度易燃R14: Reacts violently with water R14：遇水反应剧烈R15: Contact with water liberates extremely flammable gases R15：遇水释放极易燃烧的气体R16: Explosive when mixed with oxidising substances R16：与氧化性物质混合后有爆炸性R17: Spontaneously flammable in air R17：在空气中可自燃R18: In use, may form flammable/explosive vapour-air mixture R18：使用时可能产生易燃易爆的蒸汽-空气混合物R19: May form explosive peroxides R19：可能生成爆炸性过氧化物R20: Harmful by inhalation R20：吸入有害R21: Harmful in contact with skin R21：与皮肤接触有害R22: Harmful if swallowed R22：吞食有害R23: Toxic by inhalation R23：吸入有毒R24: Toxic in contact with skin R24：与皮肤接触有毒R25: Toxic if swallowed R25：吞食有毒R26: Very toxic by inhalation R26：吸入有极高毒性R27: Very toxic in contact with skin R27：与皮肤接触有极高毒性R28: Very toxic if swallowed R28：吞食有极高毒性R29: Contact with water liberates toxic gas. R29：遇水释放有毒气体R30: Can become highly flammable in use R30：使用时高度易燃R31: Contact with acids liberates toxic gas R30：遇酸释放有毒气体R32: Contact with acids liberates very toxic gas R32：与酸接触释放极高毒性气体R33: Danger of cumulative effects R33：有累积毒性的危险品R34: Causes burns R34：引起灼伤R35: Causes severe burns R35：引起严重灼伤R36: Irritating to eyes R36：刺激眼部R37: Irritating to respiratory system R37：刺激呼吸系统R38: Irritating to skin R38：刺激皮肤R39: Danger of very serious irreversible effects R39：有极严重的不可逆后果的危险品R40: Limited evidence of a carcinogenic effect R40：少数证据显示有致癌后果R41: Risk of serious damage to eyes R41：对眼睛有严重伤害R42: May cause sensitisation by inhalation R42：吸入可能导致过敏R43: May cause sensitisation by skin contact R43：与皮肤接触可能导致过敏R44: Risk of explosion if heated under confinement R44：密闭加热有爆炸危险R45: May cause cancer R45：可能致癌R46: May cause heritable genetic damage R46：可能造成遗传基因损害R48: Danger of serious damage to health by prolonged exposure R48：长期接触严重危害健康R49: May cause cancer by inhalation R49：吸入可能致癌R50: Very toxic to aquatic organisms R50：对水生生物有极高毒性R51: Toxic to aquatic organisms R51：对水生生物有毒R52: Harmful to aquatic organisms R52：对水生生物有害R53: May cause long-term adverse effects in the aquatic environment R53：可能对水体环境产生长期不良影响R54: Toxic to flora R54：对植物有毒R55: Toxic to fauna R55：对动物有毒R56: Toxic to soil organisms R56：对土壤生物有毒R57: Toxic to bees R57：对蜂类有毒R58: May cause long-term adverse effects in the environment R58：可能对环境产生长期不良影响R59: Dangerous for the ozone layer R59：对臭氧层有危害R60: May impair fertility R60：可能损害生育能力R61: May cause harm to the unborn child R61：可能对胎儿造成伤害R62: Possible risk of impaired fertility R62：有损害生育能力的危险R63: Possible risk of harm to the unborn child R63：可能有对胎儿造成伤害的危险R64: May cause harm to breast-fed babies R64：可能对哺乳期婴儿造成伤害R65: Harmful: may cause lung damage if swallowed R65：吞食可能造成肺部损伤R66: Repeated exposure may cause skin dryness or cracking R66：长期接触可能引起皮肤干裂R67: Vapours may cause drowsiness and dizziness R67：蒸汽可能引起困倦和眩晕R68: Possible risk of irreversible effects R68：可能有不可逆后果的危险R13: Extremely flammable liquefied gas. R13：极度易燃的液化气体R47: May cause birth defects.R47：可能引起胎儿缺陷Combinations组合R14/15: Reacts violently with water, liberating extremely flammable gases R14/15：遇水反应剧烈并释放极度易燃气体R15/29: Contact with water liberates toxic, extremely flammable gases R15/29：遇水释放有毒且极度易燃气体R20/21: Harmful by inhalation and in contact with skin R20/21：吸入及皮肤接触有害R20/22: Harmful by inhalation and if swallowed R20/22：吸入及吞食有害R20/21/22: Harmful by inhalation, in contact with skin and if swallowed R20/21/22：吸入、皮肤接触及吞食有害R21/22: Harmful in contact with skin and if swallowed R21/22：皮肤接触及吞食有害R23/24: Toxic by inhalation and in contact with skin R23/24：吸入及与皮肤接触会导致中毒R23/25: Toxic by inhalation and if swallowed R23/25：吸入及吞食会导致中毒R23/24/25: Toxic by inhalation, in contact with skin and if swallowed R23/24/25：吸入、与皮肤接触及吞食会导致中毒R24/25: Toxic in contact with skin and if swallowed R24/25：接触皮肤或吞食将导致中毒R26/27: Very toxic by inhalation and in contact with skin R26/27：吸入及与皮肤接触有剧毒R26/28: Very toxic by inhalation and if swallowed R26/28：吸入及吞食有剧毒R26/27/28: Very toxic by inhalation, in contact with skin and if swallowed R26/27/28：吸入、与皮肤接触及吞食有剧毒R27/28: Very toxic in contact with skin and if swallowed R27/28：接触皮肤及吞食有剧毒R36/37: Irritating to eyes and respiratory system R36/37：刺激眼部与呼吸系统R36/38: Irritating to eyes and skin R36/38：刺激眼部与皮肤R36/37/38: Irritating to eyes, respiratory system and skin R36/37/38：刺激眼部、呼吸系统及皮肤R37/38: Irritating to respiratory system and skin R37/38：刺激呼吸系统及皮肤R39/23: Toxic: danger of very serious irreversible effects through inhalation R39/23：有毒：吸入可能造成非常严重且不可逆的后果R39/24: Toxic: danger of very serious irreversible effects in contact with skin R39/24：有毒：皮肤接触可能造成非常严重且不可逆的后果R39/25: Toxic: danger of very serious irreversible effects if swallowed R39/25：有毒：吞食可能造成非常严重且不可逆的后果R39/23/24: Toxic: danger of very serious irreversible effects through inhalation and in contact with skin R39/23/24：有毒：吸入及皮肤接触可能造成非常严重且不可逆的后果R39/23/25: Toxic: danger of very serious irreversible effects through inhalation and if swallowed R39/23/25：有毒：吸入及吞食可能造成非常严重且不可逆的后果R39/24/25: Toxic: danger of very serious irreversible effects in contact with skin and if swallowed R39/24/25：有毒：皮肤接触及吞食可能造成非常严重且不可逆的后果R39/23/24/25: Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed R39/23/24/25：有毒：吸入、皮肤接触及吞食可能造成非常严重且不可逆的后果R39/26: Very Toxic: danger of very serious irreversible effects through inhalation R39/26：剧毒：吸入可能造成非常严重且不可逆的后果R39/27: Very Toxic: danger of very serious irreversible effects in contact with skin R39/27：剧毒：皮肤接触可能造成非常严重且不可逆的后果R39/28: Very Toxic: danger of very serious irreversible effects if swallowed R39/28：剧毒：吞食可能造成非常严重且不可逆的后果R39/26/27: Very Toxic: danger of very serious irreversible effects through inhalation and in contact with skin R39/26/27：剧毒：吸入及皮肤接触可能造成非常严重且不可逆的后果R39/26/28: Very Toxic: danger of very serious irreversible effects through inhalation and if swallowed R39/26/28：剧毒：吸入及吞食可能造成非常严重且不可逆的后果R39/27/28: Very Toxic: danger of very serious irreversible effects in contact with skin and if swallowed R39/27/28：剧毒：皮肤接触及吞食可能造成非常严重且不可逆的后果R39/26/27/28: Very Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed R39/26/27/28：剧毒：吸入、皮肤接触及吞食可能造成非常严重且不可逆的后果R42/43: May cause sensitization by inhalation and skin contact R42/43：吸入及皮肤接触可能导致过敏R48/20: Harmful: danger of serious damage to health by prolonged exposure through inhalation R48/20：有害：长期吸入本品可能对健康造成严重损害R48/21: Harmful: danger of serious damage to health by prolonged exposure in contact with skin R48/21：有害：长期与皮肤接触可能对健康造成严重损害R48/22: Harmful: danger of serious damage to health by prolonged exposure if swallowed R48/22：有害：长期吞食本品可能对健康造成严重损害R48/20/21: Harmful: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin R48/20/21：有害：长期吸入本品及接触皮肤可能对健康造成严重损害R48/20/22: Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed R48/20/22：有害：长期吸入及吞食本品可能对健康造成严重损害R48/21/22: Harmful: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed R48/21/22：有害：吞食或长期与皮肤接触可能对健康造成严重损害R48/20/21/22: Harmful: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed R48/20/21/22：有害：与皮肤接触及长期吸入、吞食本品可能对健康造成严重损害R48/23: Toxic: danger of serious damage to health by prolonged exposure through inhalation R48/23：有毒：长期吸入本品可能对健康造成严重损害R48/24: Toxic: danger of serious damage to health by prolonged exposure in contact with skin R48/24：有毒：长期与皮肤接触可能对健康造成严重损害R48/25: Toxic: danger of serious damage to health by prolonged exposure if swallowed R48/25：有毒：长期吞食本品可能对健康造成严重损害R48/23/24: Toxic: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin R48/23/24：有毒：与皮肤接触及长期吸入本品可能对健康造成严重损害R48/23/25: Toxic: danger of serious damage to health by prolonged exposure through inhalation and if swallowed R48/23/25：有毒：长期吸入及吞食本品可能对健康造成严重损害R48/24/25: Toxic: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed R48/24/25：有毒：长期与皮肤接触及吞食本品可能对健康造成严重损害R48/23/24/25: Toxic: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed R48/23/24/25：有毒：与皮肤接触及长期吸入、吞食本品可能对健康造成严重损害R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment R50/53：对水生生物有剧毒，可能对水生环境造成长期的不良影响R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment R51/53：对水生生物有毒，可能对水生环境造成长期的不良影响R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment R52/53：对水生生物有害，可能对水生环境造成长期的不良影响R68/20: Harmful: possible risk of irreversible effects through inhalation R68/20：有害：吸入可能造成不可逆的后果R68/21: Harmful: possible risk of irreversible effects in contact with skin R68/21：有害：皮肤接触可能造成不可逆的后果R68/22: Harmful: possible risk of irreversible effects if swallowed R68/22：有害：吞食可能造成不可逆的后果R68/20/21: Harmful: possible risk of irreversible effects through inhalation and in contact with skin R68/20/21：有害：吸入及与皮肤接触可能造成不可逆的后果R68/20/22: Harmful: possible risk of irreversible effects through inhalation and if swallowed R68/20/22：有害：吸入及吞食本品可能造成不可逆的后果R68/21/22: Harmful: possible risk of irreversible effects in contact with skin and if swallowed R68/21/22：有害：皮肤接触及吞食本品可能造成不可逆的后果R68/20/21/22: Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowedR68/20/21/22：有害：吸入、皮肤接触及吞食本品可能造成不可逆的后果